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LOINC Code 61321-6: Trimellitic anhydride (TMA) IgE/Total IgE (S) [%]

61321-6 is a LOINC code used to identify Trimellitic anhydride (TMA) IgE/Total IgE (S) [%] in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Trimellitic anhydride Ab.IgE/IgE.total. It is commonly used with the system or sample type Ser.

Reviewed by HealthAssure Clinical TeamUpdated 25 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Trimellitic anhydride Ab.IgE/IgE.total. It is commonly used with the system or sample type Ser.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Both

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Trimellitic anhydride (TMA) IgE Ab/IgE total in Serum
  • Trimellitic anhydride Ab.IgE/IgE.total
  • %; ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Anhydrid; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; IgE total; Immune globulin E; Immunoglobulin E; k86; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; TMA; Tot; Total IgE; Totl; Trimelllitic anhydride

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Trimellitic anhydride (TMA) IgE/Total IgE (S) [%]Trimellitic anhydride (TMA) IgE Ab/IgE total in SerumTMA IgE/IgE total %Trimellitic anhydride Ab.IgE/IgE.totalALLERGYTrimellitic Anhydride (TMA) allergy testAFr

Frequently asked questions

Code details

Code61321-6
SystemLOINC
Display nameTrimellitic anhydride (TMA) IgE/Total IgE (S) [%]
DescriptionTrimellitic anhydride Ab.IgE/IgE.total
Short nameTMA IgE/IgE total %
ComponentTrimellitic anhydride Ab.IgE/IgE.total
PropertyAFr
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
Example units% response
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.34
Last changed2.70

Consumer names

Trimellitic Anhydride (TMA) allergy test

Part names

Trimellitic anhydride Ab.IgE/IgE.totalAFrPtSerQnArbitrary fractionPoint in time (spot)Serum

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.